Further Mathematics Paper 2, WASSCE (SC), 2018

Question 5

 

Two panel of judges, X and Y, rank 8 brands of cooking oil as follows:         


Cooking Oil Type

A

B

C

D

E

F

G

H

X

8

5

1

7

2

6

3

4

Y

6

3

4

8

5

7

1

2

        Calculate the Spearman’s rank correlation coefficient.

Observation